Disclosure to Promote the Right To Information

Transcription

1 इ टरन ट म नक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New IS 6668 (1972): Methods for preparing test specimens from fabric samples for physical tests [TXD 1: Physical Methods of Tests]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen

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5 Indian Standard IS : METHOD FOR PREPARING TEST SPECIMENS FROM FABRIC SAMPLES FOR PHYSICAL TESTS Physical Methods of Test Sectional Committee, TDC 1 Chairman DR T. RADHAPRIEIHNAN Representing Indian Jute Industries Research Association, Calcutta Vice-Chairman DR V. SUNDARAM Cotton Technological Research Laboratory ( ICAR ), Bombay Members DR B. L. BANERJEE ( Alternate to Dr T. Radhakrishnan ) DR V. G. MUNSHI ( Alfcmate to Dr V. Sundaram ) AQRICULTTJRAL M A R x E T I N o Directorate of Marketing & Inspection, Faridabad ADVISER TO TEE GOVERNMENT OF INDIA SHRI S. JAYARAMAN ( Alternate ) SHRI T. V. ANANTHAN The Bombay Textile Research Association, Bombay SHRI T. S. CHANDRABEKHARIAEX Government of Mysore SARI K. K. CHATTERJEE Office of the Jute Commissioner, Calcutta DR D. B. DAS Indian Jute Mills Association, Calcutta SH~I I. B. DUTT Office of the Textile Commissioner, Bombay SHRI P. N. MAITHA ( Alternate ) SHRI A. R. S. GOPALA~EIAR DR B. V. IYER SHRI B. R. SHELAT (Alternate) SHRI N. C. JAIN SHRI P. B. MEHTA ( Altemate ) DR JAI PRAKASH Central Silk Board, Bombay Ahmedabad Textile Industry s Research Association, Ahmedabad Ministry of Defence ( DGI ) Textiles Committee, Bombay SHRIXATI A. KAPLASH The B%Ebat Art Silk Mills Research Association, SHRI S. P. MULLICK National Test House, Calcutta DR C. N. K. MURTHY Ministry of Defence ( R & D ) LT-COL 0. P. BAKSHI ( Alternate ) SERI I. L. PATEL Directorate General of Supplies & Disposals (Inspection Wing ), New Delhi SHRI A. K. PRAMANICK ( Alternate ) ( Continued on page 2 ) INDIAN STANDARDS INSTITUTION MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 1

6 IS : ( Continued from page 1 ) Members Representing SHRI K. P. RAMAKRISHNA PILLAY The South India Textile Research Association, Coimbatore SHRI H. SAHASRANA~UAN The Millowners Association, Bombay SERI A. D. SULE Wool Research Association, Bombay SHRI G. R. KULKARNI ( Alternate ) DR S. I. TARAPOREWALA The National Rayon Corporation Limited, Bombay SHRI D. S. NAIXARNI ( Alternate ) SHR~ M. G. THANAWALA M. Best Cotton Rope Manufacturing Co, Bombay SHRI S. M. CHAKRABORTY, Director General, IS1 ( Ex-oficio Member) Director ( Tex ) Secretary SHRI 0. R. KOHLI Deputy Director ( Tex), IS1 2

7 lndian Standard IS : METHOD FOR PREPARING TEST SPECIMENS FROM FABRIC SAMPLES FOR PHYSICAL TESTS 0. FOREWORD 0.1 This Indian Standard was adopted by the Indian Standards Institution on 7 July 1972, after the draft finalized by the Physical Methods of Test Sectional Committee had been approved by the Textile Division Council. 0.2 For the test results to be reproducible and to have a meaningful interpretation, use of a proper method for preparing test specimens from the laboratory samples is as important as that of a proper method for drawing representative samples from the lot and a proper method of test. This method is based on the practices prevailing in the textile industry. 1. SCOPE 1.1 This standard prescribes method for preparing test specimens from fabric samples for the purpose of testing various physical characteristics This standard is applicable to all types of fabrics, namely, woven, knitted, felted and nonwoven, made from any type of fibre. 2. TERMINOLOGY 2.0 For the purpose of this standard, the following definitions shall apply. 2.1 Test Sample - A representative sample drawn from a lot for the purpose of preparing test specimens for testing. 2.2 Test Specimen - A specific portion of a test sample upon which a single test is performed or which is selected for that purpose. 3. PROCEDURE 3.1 Woven Fabrics Take one of the test samples drawn for the purpose of preparing test specimens, mark the warp and weft direction and lay it flat on the 3

8 IS : surface of a smooth table. Remove any wrinkles or folds in the sample by hand without unduly stretching it Mark the required number of warpway and weftway test specimens of the required size from different portions of the sample under test. The length directions of the warpway and weftway test specimens shall be parallel to the warp and weft directions of the sample respectively. The specimens marked in each direction shall be scattered throughout the area of the sample (see Fig. 1A) in such a way that: a) no two warpway specimens contain the same set of warp yarns, and b) no two weftway specimens contain the same set of weft yarns However, in case it is not possible to have different sets of warp or weft yarns for different specimens, a portion of the warp or weft yarns taken in one specimen may be allowed to form a part of the other (see Fig. 1B) The number of test specimens to be drawn and the size of each specimen depends on the charactkristic to be tested and shall be as laid down in the specification for the material or the method of test to be followed. In case there are more than one test sample for drawing test specimens, draw approximately equal number of specimens from each test sample to make up the total number of test specimens Avoid taking test specimens from the portions having wrinkles, folds or defects. Do not take any specimen within one-tenth of the fabric width froni the selvedge. Mark the warpway and weftway test specimens with the letters W and F respectively for the purpose of identification Cut, with the help of a sharp razor or a pair of scissors the test specimens along the markings and collect the warpway and weftway specimens separately. 3.2 Other Fabrics - In the case of knitted, felted and nonwoven fabrics, the length and width directions should be treated as warp and weft directions respectively as in the case of woven fabrics and the test specimens prepared as above. 4

9 IS: LENGTH LENGTH LENGTHA - 1A TEST SPECIMENS WITHOUT COMMON YARNS (OR PORTIONS 1 LENGTli I 16 TEST SPECIMENS WITH COMMON YARNS (OR PORTiONS 1 W s warpway test specimen F 5 wrftway test specimen NOTE - Distance d shall be not less than one-tenth of fabric width. Fro. 1 LAYOUT OF TEST SPECIMENIS 5

10 INDIAN STANDARDS ON PHYSICAL METHODS OF TEST FOR FABRICS Is: Methods for determination of length and width of fabrics (Jirst revision ) Methods for determination of threads per decimeter in woven fabrics (Jirst revision ) Methods for determination of weight per square metre and weight per linear metre of fabrics (_/irst reuision ) Methods for determination of bursting strength of woven and knitted fabrics Method for determination of breaking load and elongation at break of woven textile fabrics (first revision ) Methods for determination of weight of jute fabrics (Jirsr reuision ) Method for determination of thermal resistance of textile fabrics, guarded hot-plate method Method for determination of crimp and count of yarn removed from fabrics Method for determination of wrinkle recovery of fabrics ( by measuring crease recovery angle ) Methods of test for tyre yarns, cords and tyre cord fabrics made from manmade fibres: 4910 ( Part I )-I968 Linear density 4910 ( Part II )-1968 Breaking load, elongation at break and tenacity 4910 ( Part III )-I969 Dip pick up 4910 ( Part IV)-1970 Heat shrinkage and heat shrinkage force 4910 ( Part V)-1969 Wet contraction and wet contractile force 4910 (Part VI )-1970 Definition of terms 4910 (Part VII )-1971 Heat degradation 4910 ( Part VIII )-I970 Thickness ( gauge ) 4910 (Part X)-l971 Growth Method for conditioning of textiles Method for determination of stiffness of fabrics-cantilever test Method for preparing test specimens from fabric samples for physical tests

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